Subsequent events	12 Months Ended
Subsequent events	Dec. 31, 2021
Subsequent Events [Abstract]
Subsequent events	Subsequent Events We have evaluated events through the date of this filing, and, except as described below, have determined that no material subsequent events occurred that would require recognition in the consolidated financial statements or disclosure in the notes thereto. On January 21, 2022 our Board of Directors approved the issuance of non-qualified stock options, aggregating to approximately 720,650 shares, to a significant number of employees at the market price of $1.10 per share. The options vest in two equal annual installments commencing on the first anniversary from the date of grant and expire in ten years. The fair value of the options issued was approximately $310,000. The weighted-average grant date fair value of stock options granted on that date was $0.43 per share. The shares granted represented substantially all of the remaining shares reserved for issuance under the 2006 Option Plan. On March 8, 2022, our Board of Directors adopted the 2022 Stock Incentive Plan, adoption of which is subject to approval by our shareholders.