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Note 11 - Shareholders' Equity | 6 Months Ended
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Jun. 30, 2019
Notes to Financial Statements |
Stockholders' Equity Note Disclosure [Text Block] | 11 – Shareholders’ Equity The Company declared and paid a $0.12 per common share cash dividend in the first quarter and the second quarter of 2019. Future dividends are subject to declaration by the Company’s Board of Directors.
|  | Common Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Accumulated |  |  |  |  |
|  | Shares Outstanding |  |  | $0.01 Par |  |  | Additional Paid-In |  |  | Treasury |  |  | Retained |  |  | Other Comprehensive |  |  |  |  |
(in thousands) |  | Class A |  |  | Class B |  |  | Value |  |  | Capital |  |  | Stock |  |  | Earnings |  |  | Income |  |  | Total |
Balance, December 31, 201 8 |  |  | 28,710 |  |  |  | 8,290 |  |  | $ | 458 |  |  | $ | 370,025 |  |  | $ | (245,842 | ) |  | $ | 942,287 |  |  | $ | - |  |  | $ | 1,066,928 |
Stock options exercised and stock awards |  |  | 59 |  |  |  | – |  |  |  | 1 |  |  |  | 1,230 |  |  |  | – |  |  |  | – |  |  |  | – |  |  |  | 1,231 |
Stock-based compensation related to stock options, restricted shares and employee stock purchase plan |  |  | – |  |  |  | – |  |  |  | – |  |  |  | 8,836 |  |  |  | – |  |  |  | – |  |  |  | – |  |  |  | 8,836 |
Vesting of restricted share awards |  |  | – |  |  |  | 226 |  |  |  | 2 |  |  |  | (2,317 | ) |  |  | – |  |  |  | – |  |  |  | – |  |  |  | (2,315 | )
Issuance of common stock under employee stock purchase plan |  |  | 57 |  |  |  | – |  |  |  | 1 |  |  |  | 1,680 |  |  |  | – |  |  |  | – |  |  |  | – |  |  |  | 1,681 |
Common stock repurchases |  |  | (639 | ) |  |  | (53 | ) |  |  | – |  |  |  | – |  |  |  | (26,048 | ) |  |  | – |  |  |  | – |  |  |  | (26,048 | )
Dividend Class A common stock |  |  | – |  |  |  | – |  |  |  | – |  |  |  | – |  |  |  | – |  |  |  | (3,389 | ) |  |  | – |  |  |  | (3,389 | )
Dividend Class B common stock |  |  | – |  |  |  | – |  |  |  | – |  |  |  | – |  |  |  | – |  |  |  | (991 | ) |  |  | – |  |  |  | (991 | )
Other comprehensive income |  |  | – |  |  |  | – |  |  |  | – |  |  |  | – |  |  |  | – |  |  |  | – |  |  |  | 384 |  |  |  | 384 |
Net income |  |  | – |  |  |  | – |  |  |  | – |  |  |  | – |  |  |  | – |  |  |  | 37,104 |  |  |  | – |  |  |  | 37,104 |
Balance, March 31, 2019 |  |  | 28,187 |  |  |  | 8,463 |  |  | $ | 462 |  |  | $ | 379,454 |  |  | $ | (271,890 | ) |  | $ | 975,011 |  |  | $ | 384 |  |  | $ | 1,083,421 |
Stock options exercised and stock awards |  |  | 87 |  |  |  | – |  |  |  | – |  |  |  | 1,745 |  |  |  | – |  |  |  | – |  |  |  | – |  |  |  | 1,745 |
Stock-based compensation related to stock options, restricted shares and employee stock purchase plan |  |  | – |  |  |  | – |  |  |  | – |  |  |  | 4,258 |  |  |  | – |  |  |  | – |  |  |  | – |  |  |  | 4,258 |
Vesting of restricted share awards |  |  | – |  |  |  | – |  |  |  | – |  |  |  | (517 | ) |  |  | – |  |  |  | – |  |  |  | – |  |  |  | (517 | )
Issuance of common stock under employee stock purchase plan |  |  | – |  |  |  | – |  |  |  | – |  |  |  | – |  |  |  | – |  |  |  | – |  |  |  | – |  |  |  | – |
Common stock repurchases |  |  | (251 | ) |  |  | (67 | ) |  |  | – |  |  |  | – |  |  |  | (12,062 | ) |  |  | – |  |  |  | – |  |  |  | (12,062 | )
Dividend Class A common stock |  |  | – |  |  |  | – |  |  |  | – |  |  |  | – |  |  |  | – |  |  |  | (3,387 | ) |  |  | – |  |  |  | (3,387 | )
Dividend Class B common stock |  |  | – |  |  |  | – |  |  |  | – |  |  |  | – |  |  |  | – |  |  |  | (1,050 | ) |  |  | – |  |  |  | (1,050 | )
Other comprehensive income |  |  | – |  |  |  | – |  |  |  | – |  |  |  | – |  |  |  | – |  |  |  | – |  |  |  | (505 | ) |  |  | (505 | )
Net income |  |  | – |  |  |  | – |  |  |  | – |  |  |  | – |  |  |  | – |  |  |  | 41,621 |  |  |  | – |  |  |  | 41,621 |
Balance, June 30, 2019 |  |  | 28,023 |  |  |  | 8,396 |  |  | $ | 462 |  |  | $ | 384,940 |  |  | $ | (283,952 | ) |  | $ | 1,012,195 |  |  | $ | (121 | ) |  | $ | 1,113,524 |
|  | Common Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  | Shares Outstanding |  |  | $0.01 Par |  |  | Additional Paid-In |  |  | Treasury |  |  | Retained |  |  |  |  |
(in thousands) |  | Class A |  |  | Class B |  |  | Value |  |  | Capital |  |  | Stock |  |  | Earnings |  |  | Total |
Balance, December 31, 201 7 |  |  | 31,345 |  |  |  | 8,469 |  |  | $ | 454 |  |  | $ | 348,044 |  |  | $ | (120,682 | ) |  | $ | 812,557 |  |  | $ | 1,040,373 |
Stock options exercised and stock awards |  |  | 30 |  |  |  | – |  |  |  | – |  |  |  | 766 |  |  |  | – |  |  |  | – |  |  |  | 766 |
Stock-based compensation related to stock options, restricted shares and employee stock purchase plan |  |  | – |  |  |  | – |  |  |  | – |  |  |  | 7,893 |  |  |  | – |  |  |  | – |  |  |  | 7,893 |
Vesting of restricted share awards |  |  | 1 |  |  |  | 226 |  |  |  | 2 |  |  |  | (1,621 | ) |  |  | – |  |  |  | – |  |  |  | (1,619 | )
Issuance of common stock under employee stock purchase plan |  |  | 41 |  |  |  | – |  |  |  | 1 |  |  |  | 1,353 |  |  |  | – |  |  |  | – |  |  |  | 1,354 |
Common stock repurchases |  |  | (834 | ) |  |  | (72 | ) |  |  | – |  |  |  | – |  |  |  | (38,137 | ) |  |  | – |  |  |  | (38,137 | )
Net income |  |  | – |  |  |  | – |  |  |  | – |  |  |  | – |  |  |  | – |  |  |  | 21,039 |  |  |  | 21,039 |
Balance, March 31, 2018 |  |  | 30,583 |  |  |  | 8,623 |  |  | $ | 457 |  |  | $ | 356,435 |  |  | $ | (158,819 | ) |  | $ | 833,596 |  |  | $ | 1,031,669 |
Stock options exercised and stock awards |  |  | 64 |  |  |  | – |  |  |  | – |  |  |  | 1,184 |  |  |  | – |  |  |  | – |  |  |  | 1,184 |
Stock-based compensation related to stock options, restricted shares and employee stock purchase plan |  |  | – |  |  |  | – |  |  |  | – |  |  |  | 5,949 |  |  |  | – |  |  |  | – |  |  |  | 5,949 |
Vesting of restricted share awards |  |  | – |  |  |  | 1 |  |  |  | – |  |  |  | (128 | ) |  |  | – |  |  |  | – |  |  |  | (128 | )
Common stock repurchases |  |  | – |  |  |  | (194 | ) |  |  | – |  |  |  | – |  |  |  | (7,985 | ) |  |  | – |  |  |  | (7,985 | )
Net income |  |  | – |  |  |  | – |  |  |  | – |  |  |  | – |  |  |  | – |  |  |  | 29,389 |  |  |  | 29,389 |
Balance, June 30, 2018 |  |  | 30,647 |  |  |  | 8,430 |  |  | $ | 457 |  |  | $ | 363,440 |  |  | $ | (166,804 | ) |  | $ | 862,985 |  |  | $ | 1,060,078 |

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -URI http://asc.fasb.org/topic&trid=2208762 + Details
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