Note 2 - Discontinued Operations - Balance Sheet Information for Discontinued Operations (Details) $ in Thousands	Dec. 27, 2014 USD ($)
Broadcast Microwave Services, Inc. (“BMS”) [Member]
Assets:
Accounts receivable, net	$ 3,156
Inventories	6,345
Other current assets	817
Total assets	10,318
Liabilities:
Deferred Profit	504
Other accrued current liabilities	2,279
Total current liabilities	2,783
Noncurrent liabilities	706
Total liabilities	3,489
Total current liabilities	2,783	[1]
Noncurrent liabilities	$ 706	[1]

[1] Derived from December 27, 2014 audited financial statements