Note 5 - Business Acquisition - Allocation of the Purchase Price to the Acquired Net Assets (Details) - USD ($) $ in Thousands		Mar. 31, 2017	Feb. 02, 2017	Dec. 31, 2016	Jun. 30, 2016	Nov. 22, 2011
Goodwill		$ 5,652		$ 3,034	$ 3,034	$ 3,034
Private Software Company [Member]
Cash			$ 509
Accounts receivable			273
Inventories			243
Other current assets			18
Deferred software development costs			2,397
Fixed assets			47
Goodwill			2,618
Deferred tax liability			(647)
Accounts payable & current liabilities			(80)
Purchase Price (1)	[1]		$ 5,378

[1] $1,833 + 1,555 ($1.8 million discounted at 5%) = $3,388 purchase price divided by 63% = $5.378