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Note 11 - Significant Transaction (Details Textual) - USD ($)
$ in Thousands

2 Months Ended

3 Months Ended

9 Months Ended

Oct. 31, 2019

Dec. 31, 2019

Dec. 31, 2019

Dec. 31, 2018

Dec. 31, 2019

Dec. 31, 2018

Payments to Acquire Businesses, Gross

$ 184,102

$ 4,840

Amortization of Inventory Step-up Cost

5,134

Amortization of Intangible Assets, Total

$ 2,565

$ 2,190

5,895

5,418

Revenue from Contract with Customer, Excluding Assessed Tax, Total

^[1]

$ 31,655

$ 26,682

$ 83,479

$ 76,689

Effective Income Tax Rate Reconciliation, Percent, Total

11.00%

9.50%

20.70%

8.60%

Asset Impairment Charges, Total

$ 276

$ 3,669

$ 298

$ 3,669

Biopharmaceutical Development [Member]

Revenue from Contract with Customer, Excluding Assessed Tax, Total

^[1]

5,637

5,637

Cold Chain Packaging [Member]

Revenue from Contract with Customer, Excluding Assessed Tax, Total

^[1]

229

2,052

2,442

5,521

Asset Impairment Charges, Total

276

Accounts Receivable, after Allowance for Credit Loss, Total

$ 132

132

132

GPT Acquisition [Member]

Business Acquisition, Percentage of Voting Interests Acquired

100.00%

Payments to Acquire Businesses, Gross

$ 181,547

Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables

^[2]

6,663

Inventory Step-up Cost

12,958

787

787

$ 12,958

787

12,958

Amortization of Inventory Step-up Cost

5,134

5,134

Amortization of Intangible Assets, Total

3,336

$ 4,289

Business Combination, Acquisition Related Costs

$ 1,200

Revenue from Contract with Customer, Excluding Assessed Tax, Total

5,637

Net Income (Loss) Attributable to Parent, Total

$ (4,997)

Effective Income Tax Rate Reconciliation, Percent, Total

25.00%

GPT Acquisition [Member] | Biopharmaceutical Development [Member]

Goodwill, Acquired During Period

119,130

GPT Acquisition [Member] | General and Administrative Expense [Member]

Amortization of Intangible Assets, Total

794

GPT Acquisition [Member] | Cost of Sales [Member]

Amortization of Intangible Assets, Total

$ 124

GPT Acquisition [Member] | Customer Relationships [Member]

Finite-Lived Intangible Asset, Useful Life

10 years

GPT Acquisition [Member] | Trade Names [Member]

Finite-Lived Intangible Asset, Useful Life

10 years

GPT Acquisition [Member] | Technology-Based Intangible Assets [Member]

Finite-Lived Intangible Asset, Useful Life

10 years

GPT Acquisition [Member] | Noncompete Agreements [Member]

Finite-Lived Intangible Asset, Useful Life

5 years

GPT Acquisition [Member] | Trade Accounts Receivable [Member]

Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables

$ 6,663

[1]	Intersegment revenues are not significant and are eliminated to arrive at consolidated totals.
[2]	Accounts receivable is composed of $6,663 of trade accounts receivable, net which is due from customers and is expected to be collected.

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