Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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Gross number of share options (or share units) granted during the period.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options of the plan that expired.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Number of share options (or share units) exercised during the current period.

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Note 6 - Share-based Compensation - Summary of Option Transactions (Details) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Outstanding Options (in shares)			825,251
Outstanding Options (in dollars per share)			$ 10.46
Granted options (in shares)	11,000	11,000	101,012	120,332
Granted options (in dollars per share)			$ 17.09
Exercised options (in shares)			(205,330)
Exercised options (in dollars per share)			$ 8.08
Lapsed options (in shares)
Lapsed options (in dollars per share)
Outstanding Options (in dollars per share)	$ 12.06		$ 12.06
Cancelled options (in shares)
Cancelled options (in dollars per share)
Outstanding Options (in shares)	720,933		720,933