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Interim Condensed Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - USD ($)
$ in Thousands
Common Stock Outstanding [Member]
Additional Paid-in Capital [Member]
Treasury Stock [Member]
AOCI Attributable to Parent [Member]
Retained Earnings [Member]
Total
Balance (in shares) at Dec. 31, 2019 21,839,369          
Balance at Dec. 31, 2019 $ 22 $ 228,005 $ (39,390) $ 94 $ 62,426 $ 251,157
Net loss         (3,014) (3,014)
Other comprehensive income (loss)       267   267
Equity-based compensation   10,070       10,070
Issuance of treasury stock upon exercise of stock-based awards (in shares) 596,466          
Issuance of treasury stock upon exercise of stock-based awards $ 0 [1] (8,043) 13,416   (2,502) 2,871
Balance (in shares) at Sep. 30, 2020 22,233,443          
Balance at Sep. 30, 2020 $ 22 230,032 (30,754) 361 56,910 $ 256,571
Purchase of treasury stock (in shares) (202,392)         (202,392)
Purchase of treasury stock     (4,780)     $ (4,780)
Balance (in shares) at Jun. 30, 2020 22,036,712          
Balance at Jun. 30, 2020 $ 22 228,494 (35,197) 433 58,629 252,381
Net loss         (739) (739)
Other comprehensive income (loss)       (72)   (72)
Equity-based compensation   3,546       3,546
Issuance of treasury stock upon exercise of stock-based awards (in shares) 196,731          
Issuance of treasury stock upon exercise of stock-based awards $ 0 [1] (2,008) 4,443   (980) 1,455
Balance (in shares) at Sep. 30, 2020 22,233,443          
Balance at Sep. 30, 2020 $ 22 230,032 (30,754) 361 56,910 $ 256,571
Purchase of treasury stock (in shares)           0
Balance (in shares) at Dec. 31, 2020 22,260,917          
Balance at Dec. 31, 2020 $ 22 233,172 (30,133) 478 57,350 $ 260,889
Net loss         (3,482) (3,482)
Other comprehensive income (loss)       (414)   (414)
Equity-based compensation   9,507       9,507
Issuance of treasury stock upon exercise of stock-based awards (in shares) 707,637          
Issuance of treasury stock upon exercise of stock-based awards $ 1 (10,530) 15,982   (2,211) 3,242
Balance (in shares) at Sep. 30, 2021 22,968,554          
Balance at Sep. 30, 2021 $ 23 232,149 (14,151) 64 51,657 $ 269,742
Purchase of treasury stock (in shares)           0
Balance (in shares) at Jun. 30, 2021 22,833,120          
Balance at Jun. 30, 2021 $ 23 230,083 (17,210) 239 51,881 $ 265,016
Net loss         (167) (167)
Other comprehensive income (loss)       (175)   (175)
Equity-based compensation   3,403       3,403
Issuance of treasury stock upon exercise of stock-based awards (in shares) 135,434          
Issuance of treasury stock upon exercise of stock-based awards $ 0 [1] (1,337) 3,059   (57) 1,665
Balance (in shares) at Sep. 30, 2021 22,968,554          
Balance at Sep. 30, 2021 $ 23 $ 232,149 $ (14,151) $ 64 $ 51,657 $ 269,742
Purchase of treasury stock (in shares)           0
[1] Amount less than $1.