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Note 14 - Stockholders' Equity | 6 Months Ended
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Jun. 30, 2021
Notes to Financial Statements |
Stockholders' Equity Note Disclosure [Text Block] | 14. Stockholders' Equity: The following table summarizes stockholders' equity transactions for the three-month period ended (Dollar amounts in thousands of U.S. dollars):
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Accumulated |  |  |  |  |
|  |  |  |  |  |  |  |  |  | Additional |  |  |  |  |  |  | other |  |  | Total |
|  | Common stock |  |  | paid in |  |  | Retained |  |  | comprehensive |  |  | stockholders' |
|  | Number |  |  | Amount |  |  | capital |  |  | earnings |  |  | income (loss) |  |  | equity |
Balances, March 31, 2021 |  |  | 10,624,415 |  |  | $ | 21,511 |  |  | $ | 1,778 |  |  | $ | 82,255 |  |  | $ | 1,870 |  |  | $ | 107,414 |
Exercise of stock options |  |  | 45,688 |  |  |  | 1,946 |  |  |  | (699 | ) |  |  | - |  |  |  | - |  |  |  | 1,247 |
Shares deducted from exercise of stock options for payment of withholding taxes and exercise consideration |  |  | (4,589 | ) |  |  | - |  |  |  | (80 | ) |  |  | - |  |  |  | - |  |  |  | (80 | )
Stock-based compensation |  |  | - |  |  |  | - |  |  |  | 1,209 |  |  |  | - |  |  |  | - |  |  |  | 1,209 |
Net income |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 1,807 |  |  |  | - |  |  |  | 1,807 |
Other comprehensive income (loss) |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | (773 | ) |  |  | (773 | )
Balances, June 30, 2021 |  |  | 10,665,514 |  |  | $ | 23,457 |  |  | $ | 2,208 |  |  | $ | 84,062 |  |  | $ | 1,097 |  |  | $ | 110,824 |
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Accumulated |  |  |  |  |
|  |  |  |  |  |  |  |  |  | Additional |  |  |  |  |  |  | other |  |  | Total |
|  | Common stock |  |  | paid in |  |  | Retained |  |  | comprehensive |  |  | stockholders' |
|  | Number |  |  | Amount |  |  | capital |  |  | earnings |  |  | income (loss) |  |  | equity |
Balances, December 31, 2020 |  |  | 10,612,414 |  |  | $ | 20,798 |  |  | $ | 1,458 |  |  | $ | 80,106 |  |  | $ | 2,336 |  |  | $ | 104,698 |
Exercise of stock options |  |  | 73,875 |  |  |  | 2,659 |  |  |  | (1,183 | ) |  |  | - |  |  |  | - |  |  |  | 1,476 |
Shares deducted from exercise of stock options for payment of withholding taxes and exercise consideration |  |  | (20,775 | ) |  |  | - |  |  |  | (298 | ) |  |  | - |  |  |  | - |  |  |  | (298 | )
Stock-based compensation |  |  | - |  |  |  | - |  |  |  | 2,231 |  |  |  | - |  |  |  | - |  |  |  | 2,231 |
Net income |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 3,956 |  |  |  | - |  |  |  | 3,956 |
Other comprehensive income (loss) |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | (1,239 | ) |  |  | (1,239 | )
Balances, June 30, 2021 |  |  | 10,665,514 |  |  | $ | 23,457 |  |  | $ | 2,208 |  |  | $ | 84,062 |  |  | $ | 1,097 |  |  | $ | 110,824 |
\ 2021 Stock Buyback Program On February 9, 2021, the Company announced that its Board approved a stock buyback program to repurchase up to $40 million of its common stock in the open market. Purchases will be made exclusively through the facilities of the NASDAQ Capital Market. The stock buyback program commenced on February 10, 2021 and will terminate on or before February 9, 2022. For the three and six months ended June 30, 2021, the Company did not repurchase shares under this program. 2020 Stock Buyback Program On February 12, 2020, the Company announced that its Board had approved a stock buyback program to repurchase up to $40 million of its common stock in the open market. The $40 million buyback program commenced on February 13, 2020 and terminated on February 12, 2021. For the six months ended June 30, 2021, the Company did not repurchase shares under this program. For the three months ended June 30, 2020, the Company repurchased 3,500 shares under this program for total consideration of $0.2 million. For the six months ended June 30, 2020, the Company repurchased 70,238 shares under this program for total consideration of $3.3 million. 2019 Stock Buyback Program On February 13, 2019, the Company announced that its Board had approved a stock buyback program to repurchase up to $40 million of its common stock in the open market. The $40 million buyback program commenced on February 14, 2019 and terminated on February 13, 2020. During the six months ended June 30, 2020, the Company did not repurchase shares under this program.

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- Definition The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 14 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496171-112644 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496171-112644 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 18 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496189-112644 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644 Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -URI http://asc.fasb.org/topic&trid=2208762 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 18 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496189-112644 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496171-112644 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 18 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496189-112644 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 16 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496180-112644 Reference 14: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644 Reference 15: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(e)(1)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 + Details
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