Contractual Payment Obligation	12 Months Ended
Dec. 31, 2021
Related Party Transactions [Abstract]
Contractual Payment Obligation	7. Contractual Payment Obligation Hirsch Electronics Corporation (“Hirsch”) Acquisition – Secure Keyboards and Secure Networks. Prior to the Company’s acquisition of Hirsch in 2009, in November 1994, Hirsch had entered into a settlement agreement (the “1994 Settlement Agreement”) with two limited partnerships, Secure Keyboards, Ltd. (“Secure Keyboards”) and Secure Networks, Ltd. (“Secure Networks”). On April 8, 2009, the 1994 Settlement Agreement was amended and restated to replace the royalty-based payment arrangement with an installment payment schedule with contractual payments to be made in future periods through 2021 (the “2009 Settlement Agreement”). On April 30, 2009, as part of the acquisition of Hirsch, the Company provided Secure Keyboards and Secure Networks with a limited guarantee of Hirsch’s payment obligation under the 2009 Settlement Agreement. On April 13, 2020, the Company, Secure Keyboards, and Secure Networks, amended the 2009 Settlement Agreement. The amendment reduced the amount of quarterly payments due under the obligation in 2020, and required three additional quarterly payments in 2021. The Company’s remaining payment obligation under the 2009 Settlement Agreement, as amended, was extended through October 31, 2021. The Company included approximately $43,000 and $139,000 of interest expense during the years ended December 31, 2021 and 2020, respectively, in its consolidated statements of comprehensive income (loss) for interest accreted on the payment obligation. As of December 31, 2021, the Company had paid all amounts outstanding under the 2009 Settlement Agreement, as amended.

Contractual Payment Obligation

12 Months Ended

Dec. 31, 2021

7. Contractual Payment Obligation

Hirsch Electronics Corporation (“Hirsch”) Acquisition – Secure Keyboards and Secure Networks. Prior to the Company’s acquisition of Hirsch in 2009, in November 1994, Hirsch had entered into a settlement agreement (the “1994 Settlement Agreement”) with two limited partnerships, Secure Keyboards, Ltd. (“Secure Keyboards”) and Secure Networks, Ltd. (“Secure Networks”). On April 8, 2009, the 1994 Settlement Agreement was amended and restated to replace the royalty-based payment arrangement with an installment payment schedule with contractual payments to be made in future periods through 2021 (the “2009 Settlement Agreement”). On April 30, 2009, as part of the acquisition of Hirsch, the Company provided Secure Keyboards and Secure Networks with a limited guarantee of Hirsch’s payment obligation under the 2009 Settlement Agreement.

On April 13, 2020, the Company, Secure Keyboards, and Secure Networks, amended the 2009 Settlement Agreement. The amendment reduced the amount of quarterly payments due under the obligation in 2020, and required three additional quarterly payments in 2021. The Company’s remaining payment obligation under the 2009 Settlement Agreement, as amended, was extended through October 31, 2021. The Company included approximately $43,000 and $139,000 of interest expense during the years ended December 31, 2021 and 2020, respectively, in its consolidated statements of comprehensive income (loss) for interest accreted on the payment obligation.

As of December 31, 2021, the Company had paid all amounts outstanding under the 2009 Settlement Agreement, as amended.