Note 9 - Notes Payable (Details) $ in Thousands | Jul. 01, 2015USD ($) | Jun. 24, 2015USD ($) | Apr. 22, 2015USD ($) | Jan. 30, 2015USD ($) | Nov. 03, 2014USD ($) | Jun. 30, 2014USD ($) | Mar. 21, 2014USD ($) | Jan. 31, 2014USD ($) | Aug. 12, 2013USD ($) | Apr. 30, 2013USD ($) | Dec. 28, 2012USD ($) | Jul. 27, 2012USD ($) | Jan. 31, 2014USD ($) | Dec. 31, 2015USD ($) | Dec. 31, 2014USD ($) | Jul. 20, 2015USD ($) | Dec. 31, 2013 |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Notes Payable to Bank | | | | | | | | | | | | | | | $ 318 | | |
Notes Payable | | | | | | | | | | | | | | $ 754 | 1,231 | | |
Business Combination, Consideration Transferred, Liabilities Incurred | | | | | | | | | | | | | | 1,307 | $ 286 | | |
Receivable with Imputed Interest, Effective Yield (Interest Rate) | | | | | | | | 3.75% | | | | | | | | | |
Owner's Representative Services, Inc [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Number of Equal Installments | | | | | | | | | | | | | | | 2 | | |
Receivable with Imputed Interest, Effective Yield (Interest Rate) | | | | | | | | | | | | | | | 3.75% | | |
Owner's Representative Services, Inc [Member] | Future Event June 30, 2015 [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Debt Instrument, Periodic Payment | | | | | | | | | | | | | | | $ 225 | | |
Owner's Representative Services, Inc [Member] | Future Event June 30, 2016 [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Debt Instrument, Periodic Payment | | | | | | | | | | | | | | | $ 225 | | |
AK Environmental, LLC [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Business Combination, Consideration Transferred, Liabilities Incurred | | | | | | | $ 3,000 | | | | | | | | | | |
Debt Instrument, Interest Rate, Stated Percentage | | | | | | | 3.00% | | | | | | | | | | |
Number of Equal Installments | | | | | | | 3 | | | | | | | | | | |
AK Environmental, LLC [Member] | Future Event March 21, 2015 [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Debt Instrument, Periodic Payment | | | | | | | $ 1,000 | | | | | | | | | | |
AK Environmental, LLC [Member] | Future Event March 21, 2017 [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Debt Instrument, Periodic Payment | | | | | | | 1,000 | | | | | | | | | | |
AK Environmental, LLC [Member] | Future Event March 21, 2016 [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Debt Instrument, Periodic Payment | | | | | | | $ 1,000 | | | | | | | | | | |
Air Quality Consulting, Inc. [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Number of Equal Installments | | | | | | | | 2 | | | | | | | | | |
Receivable with Imputed Interest, Effective Yield (Interest Rate) | | | | | | | | 3.75% | | | | | | | | | |
Air Quality Consulting, Inc. [Member] | Future Event January 31, 2015 [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Debt Instrument, Periodic Payment | | | | | | | | $ 150 | | | | | | | | | |
Air Quality Consulting, Inc. [Member] | Future Event January 31, 2016 [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Debt Instrument, Periodic Payment | | | | | | | | 150 | | | | | | | | | |
Western Alliance Bank [Member] | Revolving Credit Facility [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Line of Credit Facility, Expiration Period | | | | | | | | | | | | | 2 years | | | | |
Line of Credit Facility, Maximum Borrowing Capacity | | | | | | | | 8,000 | | | | | $ 8,000 | | | | |
Debt to Tangible Net Worth Covenant Ratio | | | | | | | | | | | | | | | 3 | | |
Debt Service Coverage Ratio | | | | | | | | | | | | | | | | | 1.5 |
Long-term Line of Credit | | | | | | | | | | | | | | 0 | $ 0 | | |
Western Alliance Bank [Member] | Standby Letters of Credit [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Line of Credit Facility, Maximum Borrowing Capacity | | | | | | | | | | | | | | | | $ 1,000 | |
Long-term Line of Credit | | | | | | | | | | | | | | 146 | 0 | | |
Western Alliance Bank [Member] | Prime Rate [Member] | Revolving Credit Facility [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Debt Instrument, Basis Spread on Variable Rate | | | | | | | | | | | | | 0.50% | | | | |
Term Loan [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Notes Payable to Bank | | | | | | | | | | | | | | 0 | 318 | | |
Note Payable - Former Stockholder of Nolte [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Debt Instrument, Periodic Payment, Principal | | | | | | | | | | | | | | 100 | | | |
Notes Payable | | | | | | | | | | | | | | $ 754 | $ 1,231 | | |
Note Payable - Former Stockholder of Nolte [Member] | Prime Rate [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Debt Instrument, Basis Spread on Variable Rate | | | | | | | | | | | | | | 1.00% | | | |
Debt Instrument, Interest Rate, Effective Percentage Rate Range, Maximum | | | | | | | | | | | | | | 7.00% | | | |
Debt Instrument, Interest Rate, Effective Percentage | | | | | | | | | | | | | | 4.25% | 4.25% | | |
Uncollateralized Promissory Note [Member] | Event April 30,2014 [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Debt Instrument, Periodic Payment, Principal | | | | | | | | | | $ 67 | | | | | | | |
Uncollateralized Promissory Note [Member] | Future Event, July 2015 [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Debt Instrument, Periodic Payment, Principal | | | | | | | | | | | | $ 500 | | | | | |
Uncollateralized Promissory Note [Member] | Future Event July 2016 [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Debt Instrument, Periodic Payment, Principal | | | | | | | | | | | | $ 500 | | | | | |
Uncollateralized Promissory Note [Member] | RBA Group, Inc. [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Notes Payable | | | | | | | | | | | | | | $ 4,000 | | | |
Business Combination, Consideration Transferred, Liabilities Incurred | $ 4,000 | | | | | | | | | | | | | | | | |
Debt Instrument, Interest Rate, Stated Percentage | 3.00% | | | | | | | | | | | | | | | | |
Number of Equal Installments | 4 | | | | | | | | | | | | | | | | |
Debt Instrument, Periodic Payment | $ 1,000 | | | | | | | | | | | | | | | | |
Uncollateralized Promissory Note [Member] | Allwyn Priorities, LLC. [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Debt Instrument, Periodic Payment, Principal | | $ 167 | | | | | | | | | | | | | | | |
Notes Payable | | | | | | | | | | | | | | 500 | | | |
Business Combination, Consideration Transferred, Liabilities Incurred | | $ 500 | | | | | | | | | | | | | | | |
Debt Instrument, Interest Rate, Stated Percentage | | 3.50% | | | | | | | | | | | | | | | |
Number of Equal Installments | | 3 | | | | | | | | | | | | | | | |
Debt Instrument, Periodic Payment | | $ 167 | | | | | | | | | | | | | | | |
Uncollateralized Promissory Note [Member] | Richard J. Mendoza, Inc. [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Debt Instrument, Interest Rate, Effective Percentage | | | 3.00% | | | | | | | | | | | | | | |
Debt Instrument, Periodic Payment, Principal | | | $ 250 | | | | | | | | | | | | | | |
Notes Payable | | | | | | | | | | | | | | 500 | | | |
Business Combination, Consideration Transferred, Liabilities Incurred | | | $ 500 | | | | | | | | | | | | | | |
Debt Instrument, Interest Rate, Stated Percentage | | | 3.00% | | | | | | | | | | | | | | |
Number of Equal Installments | | | 2 | | | | | | | | | | | | | | |
Debt Instrument, Periodic Payment | | | $ 250 | | | | | | | | | | | | | | |
Uncollateralized Promissory Note [Member] | Joslin Lesser and Associates [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Notes Payable | | | | | | | | | | | | | | 1,250 | | | |
Business Combination, Consideration Transferred, Liabilities Incurred | | | | $ 1,250 | | | | | | | | | | | | | |
Debt Instrument, Interest Rate, Stated Percentage | | | | 3.50% | | | | | | | | | | | | | |
Number of Equal Installments | | | | 4 | | | | | | | | | | | | | |
Uncollateralized Promissory Note [Member] | Joslin Lesser and Associates [Member] | Future Event January 2016 [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Debt Instrument, Periodic Payment, Principal | | | | $ 313 | | | | | | | | | | | | | |
Debt Instrument, Periodic Payment | | | | 313 | | | | | | | | | | | | | |
Uncollateralized Promissory Note [Member] | Joslin Lesser and Associates [Member] | Future Event January 2017 [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Debt Instrument, Periodic Payment, Principal | | | | 313 | | | | | | | | | | | | | |
Uncollateralized Promissory Note [Member] | Joslin Lesser and Associates [Member] | Future Event January 2018 [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Debt Instrument, Periodic Payment, Principal | | | | 313 | | | | | | | | | | | | | |
Uncollateralized Promissory Note [Member] | Joslin Lesser and Associates [Member] | Future Event January 2019 [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Debt Instrument, Periodic Payment, Principal | | | | $ 313 | | | | | | | | | | | | | |
Uncollateralized Promissory Note [Member] | Buric Companies [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Debt Instrument, Interest Rate, Effective Percentage | | | | | 3.00% | | | | | | | | | | | | |
Notes Payable | | | | | | | | | | | | | | 300 | $ 200 | | |
Business Combination, Consideration Transferred, Liabilities Incurred | | | | | $ 300 | | | | | | | | | | | | |
Debt Instrument, Interest Rate, Stated Percentage | | | | | 3.00% | | | | | | | | | | | | |
Number of Equal Installments | | | | | 3 | | | | | | | | | | | | |
Debt Instrument, Face Amount | | | | | $ 300 | | | | | | | | | | | | |
Uncollateralized Promissory Note [Member] | Buric Companies [Member] | Future Event November 2015 [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Debt Instrument, Periodic Payment | | | | | 100 | | | | | | | | | | | | |
Uncollateralized Promissory Note [Member] | Buric Companies [Member] | Future Event November 2016 [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Debt Instrument, Periodic Payment | | | | | 100 | | | | | | | | | | | | |
Uncollateralized Promissory Note [Member] | Buric Companies [Member] | Future Event November 2017 [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Debt Instrument, Periodic Payment | | | | | $ 100 | | | | | | | | | | | | |
Uncollateralized Promissory Note [Member] | Owner's Representative Services, Inc [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Notes Payable | | | | | | | | | | | | | | 221 | 434 | | |
Business Combination, Consideration Transferred, Liabilities Incurred | | | | | | $ 450 | | | | | | | | | | | |
Number of Equal Installments | | | | | | 2 | | | | | | | | | | | |
Debt Instrument, Face Amount | | | | | | $ 450 | | | | | | | | | | | |
Receivable with Imputed Interest, Effective Yield (Interest Rate) | | | | | | 3.75% | | | | | | | | | | | |
Uncollateralized Promissory Note [Member] | Owner's Representative Services, Inc [Member] | Future Event June 30, 2015 [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Debt Instrument, Periodic Payment, Principal | | | | | | $ 225 | | | | | | | | | | | |
Uncollateralized Promissory Note [Member] | Owner's Representative Services, Inc [Member] | Future Event June 30, 2016 [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Debt Instrument, Periodic Payment, Principal | | | | | | $ 225 | | | | | | | | | | | |
Uncollateralized Promissory Note [Member] | AK Environmental, LLC [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Debt Instrument, Interest Rate, Effective Percentage | | | | | | | 3.00% | | | | | | | | | | |
Notes Payable | | | | | | | | | | | | | | 2,000 | 3,000 | | |
Number of Equal Installments | | | | | | | 3 | | | | | | | | | | |
Debt Instrument, Face Amount | | | | | | | $ 3,000 | | | | | | | | | | |
Uncollateralized Promissory Note [Member] | AK Environmental, LLC [Member] | Future Event March 21, 2015 [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Debt Instrument, Periodic Payment, Principal | | | | | | | 1,000 | | | | | | | | | | |
Uncollateralized Promissory Note [Member] | AK Environmental, LLC [Member] | Future Event March 21, 2017 [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Debt Instrument, Periodic Payment, Principal | | | | | | | 1,000 | | | | | | | | | | |
Uncollateralized Promissory Note [Member] | AK Environmental, LLC [Member] | Future Event March 21, 2016 [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Debt Instrument, Periodic Payment, Principal | | | | | | | $ 1,000 | | | | | | | | | | |
Uncollateralized Promissory Note [Member] | Air Quality Consulting, Inc. [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Notes Payable | | | | | | | | | | | | | | 150 | 294 | | |
Business Combination, Consideration Transferred, Liabilities Incurred | | | | | | | | $ 300 | | | | | | | | | |
Number of Equal Installments | | | | | | | | 2 | | | | | | | | | |
Debt Instrument, Face Amount | | | | | | | | $ 300 | | | | | $ 300 | | | | |
Uncollateralized Promissory Note [Member] | Air Quality Consulting, Inc. [Member] | Future Event January 31, 2015 [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Debt Instrument, Periodic Payment, Principal | | | | | | | | 150 | | | | | | | | | |
Uncollateralized Promissory Note [Member] | Air Quality Consulting, Inc. [Member] | Future Event January 31, 2016 [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Debt Instrument, Periodic Payment, Principal | | | | | | | | $ 150 | | | | | | | | | |
Uncollateralized Promissory Note [Member] | Dunn Environmental, Inc. [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Debt Instrument, Interest Rate, Effective Percentage | | | | | | | | | 4.00% | | | | | | | | |
Notes Payable | | | | | | | | | | | | | | 0 | 46 | | |
Number of Equal Installments | | | | | | | | | 2 | | | | | | | | |
Debt Instrument, Face Amount | | | | | | | | | $ 92 | | | | | | | | |
Uncollateralized Promissory Note [Member] | Dunn Environmental, Inc. [Member] | Future Event August 12, 2014 [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Debt Instrument, Periodic Payment, Principal | | | | | | | | | 46 | | | | | | | | |
Uncollateralized Promissory Note [Member] | Dunn Environmental, Inc. [Member] | Future Event August 12, 2015 [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Debt Instrument, Periodic Payment, Principal | | | | | | | | | $ 46 | | | | | | | | |
Uncollateralized Promissory Note [Member] | Consilium Partners [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Debt Instrument, Interest Rate, Effective Percentage | | | | | | | | | | 4.00% | | | | | | | |
Notes Payable | | | | | | | | | | | | | | $ 67 | $ 133 | | |
Number of Equal Installments | | | | | | | | | | 3 | | | | | | | |
Debt Instrument, Face Amount | | | | | | | | | | $ 200 | | | | | | | |
Uncollateralized Promissory Note [Member] | Consilium Partners [Member] | Future Event April 30, 2015 [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Debt Instrument, Periodic Payment, Principal | | | | | | | | | | 67 | | | | | | | |
Uncollateralized Promissory Note [Member] | Consilium Partners [Member] | Future Event April 30, 2016 [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Debt Instrument, Periodic Payment, Principal | | | | | | | | | | $ 67 | | | | | | | |
Uncollateralized Promissory Note [Member] | Kaco [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Debt Instrument, Interest Rate, Effective Percentage | | | | | | | | | | | | 3.00% | | 2.58% | 2.58% | | |
Debt Instrument, Periodic Payment, Principal | | | | | | | | | | | $ 500 | | | | | | |
Notes Payable | | | | | | | | | | | | | | $ 0 | $ 500 | | |
Number of Equal Installments | | | | | | | | | | | | 3 | | | | | |
Debt Instrument, Face Amount | | | | | | | | | | | | $ 2,000 | | | | | |
Uncollateralized Promissory Note [Member] | Kaco [Member] | Future Event July 27, 2014 [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Debt Instrument, Periodic Payment, Principal | | | | | | | | | | | | $ 500 | | | | | |
Uncollateralized Promissory Note [Member] | London Interbank Offered Rate (LIBOR) [Member] | Kaco [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Debt Instrument, Basis Spread on Variable Rate | | | | | | | | | | | | 2.00% | | | | | |
Short-term Promissory Note [Member] | Richard J. Mendoza, Inc. [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Notes Payable | | | | | | | | | | | | | | $ 278 | | | |
Business Combination, Consideration Transferred, Liabilities Incurred | | | $ 3,000 | | | | | | | | | | | | | | |
Debt Instrument, Term | | | 1 year | | | | | | | | | | | | | | |
Minimum [Member] | Western Alliance Bank [Member] | Prime Rate [Member] | Revolving Credit Facility [Member] | | | | | | | | | | | | | | | | | |
Note 9 - Notes Payable (Details) [Line Items] | | | | | | | | | | | | | | | | | |
Line of Credit Facility, Interest Rate During Period | | | | | | | | | | | | | 3.75% | | | | |